Ever since buying this car in May when you turn on the ignition there is a buzzing noise coming from the passenger side from inside the dash it's definitely in the dash because you can't hear it outside inside the engine compartment. When you turn on the engine the noise stays but obviously you cannot hear it as well because the engine noise drounds it out, it eventually seems to stop and if the engine is fully warmed up it seems to stop when the ignition is on . Is this an issue with the car or is it normal? And what is it?